Nathaniel Pitt Langford, The Discovery of Yellowstone Park
“ The height of this rock from its base is about fifty feet. The friable rock forming the spires and towers and pinnacles crumbles away under a slight pressure. I climbed one of these tall spires on the brink of the chasm overlooking the fall, and from the top had a beautiful view, though it was one not unmixed with terror. Directly beneath my feet, but probably about one hundred feet below me, was the verge of the fall, and still below that the deep gorge through which the creek went bounding and roaring over the boulders to its union with the Yellowstone. ”
